KR20140134676A - Multicast broadcast multimedia service-assisted content distribution - Google Patents
Multicast broadcast multimedia service-assisted content distribution Download PDFInfo
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- KR20140134676A KR20140134676A KR1020147025683A KR20147025683A KR20140134676A KR 20140134676 A KR20140134676 A KR 20140134676A KR 1020147025683 A KR1020147025683 A KR 1020147025683A KR 20147025683 A KR20147025683 A KR 20147025683A KR 20140134676 A KR20140134676 A KR 20140134676A
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Abstract
실시예는 무선 통신 네트워크에서 멀티캐스트 방송 멀티미디어 서비스-어시스티드(MBMS-assisted) 콘텐츠 분배를 위한 방법, 시스템 및 장치를 제공한다. 프록시 터미널은 미디어 데이터 및 메타데이터를 포함하는 MBMS 전송을 수신하고 캐시하도록 구성된 MBMS 액세스 클라이언트를 포함할 수 있다. 프록시 터미널은 미디어 데이터의 적어도 일부분을 하이퍼텍스트 전송 프로토콜(HTTP) 전송을 통하여 무선 통신 네트워크의 사용자 장비(UE)에게 전송하도록 구성된 HTTP 서버 모듈을 더 포함할 수 있다. 미디어 데이터 및 메타데이터는 HTTP 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over HTTP; DASH) 포맷으로 구성되어 있을 수 있다. 프록시 터미널은 무선 통신 네트워크의 진화된 노드 B(eNB), UE, 또는 다른 UE에 포함될 수 있다. Embodiments provide a method, system, and apparatus for Multicast Broadcast Multimedia Service-Assisted Content Distribution in a wireless communication network. The proxy terminal may include an MBMS access client configured to receive and cache MBMS transmissions including media data and metadata. The proxy terminal may further comprise an HTTP server module configured to transmit at least a portion of the media data to a user equipment (UE) of the wireless communication network via a Hypertext Transfer Protocol (HTTP) transmission. The media data and metadata may be configured in HTTP based dynamic adaptive streaming over HTTP (DASH) format. The proxy terminal may be included in an evolved Node B (eNB), UE, or other UE of the wireless communication network.
Description
관련 출원의 상호 참조Cross reference of related application
본 출원은 2012년 3월 16일, "WIRELESS COMMUNICATION SYSTEMS AND METHODS (무선 통신 시스템 및 방법)"이라는 명칭으로 출원된 미국 가출원 제 61/612,188 호의 우선권을 주장하여, 2012년 9월 25일, "MULTICAST BROADCAST MULTIMEDIA SERVICE-ASSISTED CONTENT DISTRIBUTION (멀티캐스트 방송 멀티미디어 서비스-어시스티드 콘텐츠 분배)"라는 명칭으로 출원된 미국 출원 제 13/626,661 호의 우선권을 주장하며, 위 두 출원은 본 출원에서 그 전체가 모든 목적을 위한 참조문헌으로 인용된다. This application claims the benefit of United States Provisional Application No. 61 / 612,188, filed March 16, 2012, entitled " WIRELESS COMMUNICATION SYSTEMS AND METHODS ", filed on September 25, 2012, entitled "MULTICAST US Ser. No. 13 / 626,661, entitled "BROADCAST MULTIMEDIA SERVICE-ASSISTED CONTENT DISTRIBUTION", the entire contents of which are hereby incorporated by reference in their entirety for all purposes ≪ / RTI >
기술분야Technical field
본 발명의 실시예는 일반적으로 통신 분야에 관한 것으로, 특히 멀티캐스트 방송 멀티미디어 서비스-어시스티드 콘텐츠 분배(multicast broadcast multimedia service-assisted content distribution)에 관한 것이다.
Embodiments of the present invention relate generally to the field of communications, and more particularly to multicast broadcast multimedia service-assisted content distribution.
일부 무선 통신 네트워크에서, 하이퍼텍스트 전송 프로토콜 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over hypertext transfer protocol (DASH))은 비디오, 오디오, 멀티미디어, 및/또는 기타 콘텐츠와 같은 미디어 콘텐츠를 무선 통신 네트워크를 통해 사용자 장비(UE)에 전달하는데 사용된다. DASH는 3세대 파트너십 프로젝트(3GPP) TS 26.247 V.10.2.0은 물론이고 MPEG의 ISO/IEC DIS 23009-1에서도 표준화되었다. 미디어 콘텐츠는 전형적으로 UE와 미디어 콘텐츠를 저장하는 원격 HTTP 미디오 서버와의 사이에서 유니캐스트 HTTP 시그널링을 통해 UE에 의해 액세스된다. UE는 원격 HTTP 미디어 서버로 라우트되는 HTTP 요청을 송신하며, 원격 HTTP 미디어 서버는 응답으로 요청된 미디어 콘텐츠를 HTTP를 거쳐 UE에게 전송한다. 이것은 네트워크에서 큰 시그널링 오버헤드를 불러일으킬 수 있으며 미디어 콘텐츠의 분배에 지연을 더해줄 수 있다. In some wireless communication networks, the dynamic adaptive streaming over hypertext transfer protocol (DASH) based on the hypertext transfer protocol allows media content, such as video, audio, multimedia, and / or other content, And is used to communicate to the user equipment (UE). DASH has been standardized in MPEG ISO / IEC DIS 23009-1, as well as 3rd Generation Partnership Project (3GPP) TS 26.247 V.10.2.0. The media content is typically accessed by the UE via unicast HTTP signaling between the UE and the remote HTTP media server storing the media content. The UE sends an HTTP request routed to the remote HTTP media server, which in turn sends the requested media content to the UE via HTTP. This can cause a large signaling overhead in the network and can add delay to the distribution of media content.
DASH에서, 미디어 프리젠테이션 기술(media presentation description (MPD)) 메타 파일은 서버에 저장된 (여러 비트레이트, 프레임 레이트, 해상도, 코덱 방식 등을 비롯한) 미디어 콘텐츠 표현(media content representations)의 구조 및 여러 버전에 관한 정보를 제공한다. 게다가, DASH는 또한 예를 들면, 세그먼트를 스위칭 및 다른 표현과의 동시적 프리젠테이션을 위한 미디어 프리젠테이션 타임라인으로 확실하게 맵핑시키기 위해 미디어 플레이어의 초기화 및 미디어 세그먼트에 관한 정보 (미디어 플레이어는 컨테이너 포맷 및 미디어 타이밍 정보를 이해하기 위해 초기화 세그먼트를 검토한다)를 포함하는 세그먼트 포맷(segment formats)을 명시한다. 세그먼트들의 관계 및 이들이 미디어 프리젠테이션을 형성하는 방법을 기술하는 이러한 MPD 메타데이터 정보에 기초하여, 클라이언트는 HTTP GET 또는 부분적인 GET 메소드를 이용하여 세그먼트를 요청할 수 있다. In DASH, a media presentation description (MPD) metafile is a representation of the structure of media content representations (including multiple bit rates, frame rates, resolutions, codec formats, etc.) And the like. In addition, the DASH may also include information about the media player's initialization and media segments (e.g., media player may be formatted in a container format, for example), to ensure that the segment is mapped to a media presentation timeline for switching and presentation concurrently with other representations And reviewing the initialization segment to understand media timing information). Based on this MPD metadata information describing the relationship of the segments and how they form the media presentation, the client can request the segment using an HTTP GET or a partial GET method.
3GPP TS 26.346에서 명시된 멀티미디어 방송 멀티캐스트 서비스(Multimedia Broadcast Multicast Services (MBMS))는 3GPP에 의해 공표된 셀룰러 표준들 중 한 표준에 따라서 동작하는 셀룰러 네트워크에서 활용된 포인트-투-멀티포인트 시스템(point-to-multipoint system)이다. 이것은 방송 및 멀티캐스트 기술에 기초하여 대중적인 콘텐츠를 많은 수신자들에게 효율적으로 전달하기 위해 설계되었으며 3GPP 범용 이동 통신 시스템(Universal Mobile Telecommunications System (UMTS))의 릴리즈 6에서 옵션 특징으로서 처음 소개되었다. MBMS는 멀티캐스트 브로드캐스트 싱글 주파수 네트워크(multicast broadcast single frequency network (MBSFN)) 기능과 같은 몇 가지 향상된 내용에 기초하여 나중의 3GPP 릴리즈에서 더욱 최적화되었다. 서비스 계층에서, MBMS는 또한 스트리밍을 위한 실시간 전송 프로토콜(real-time transmission protocol (RTP)) 및 파일 전달을 위한 단방향 전송을 통한 파일 전송(File Delivery over Unidirectional Transport (FLUTE))을 이용하는, 사용자 데이터그램 프로토콜(user datagram protocol (UDP))에 기반한 전송-계층 프로토콜에 기초한, 멀티미디어 콘텐츠의 스트리밍 및 파일의 신뢰할 만한 다운로드의 두 가지에 관한 전달 프로토콜을 정의하고 있다. MBMS는 3GPP 릴리즈 8 및 그 후속에 대응하는 3GPP-기반 롱텀 에볼루션(LTE) 표준 개발에서 향상된 MBMS (eMBMS) 모드로서 채택되었다.The Multimedia Broadcast Multicast Services (MBMS) specified in 3GPP TS 26.346 is a point-to-multipoint system utilized in a cellular network operating according to one of the cellular standards published by 3GPP. to-multipoint system. It was designed to efficiently deliver popular content to many recipients based on broadcast and multicast technology and was first introduced as an optional feature in Release 6 of the 3GPP Universal Mobile Telecommunications System (UMTS). MBMS has been further optimized in later 3GPP releases based on several enhancements such as multicast broadcast single frequency network (MBSFN) functionality. At the service layer, the MBMS also includes a user datagram (RTP), which utilizes a real-time transmission protocol (RTP) for streaming and a File Delivery over Unidirectional Transport (FLUTE) Defines a delivery protocol based on a transport-layer protocol based on a user datagram protocol (UDP), for both streaming of multimedia content and reliable downloading of files. MBMS has been adopted as an enhanced MBMS (eMBMS) mode in 3GPP Release 8 and its subsequent development of the corresponding 3GPP-based Long Term Evolution (LTE) standard.
DASH-형식의 콘텐츠는 MBMS 다운로드 전달 방법 및/또는 HTTP-기반 전달 방법을 이용하여 UE에게 전달될 수 있다. MBMS-기반 DASH 전달 옵션은 일부 서비스 영역에서는 이용 가능하지 않을 수 있는데, 이 경우에 이들 서비스는 대안으로 유니캐스트를 통해 제공될 수도 있다. MBMS를 통한 DASH-형식의 콘텐츠 전달의 경우, FLUTE 전송 프로토콜이 사용될 수 있다. RFC3926에서 정의된 FLUTE는 클라이언트가 HTTP/TCP를 통해 DASH 세그먼트가 전달되는 것을 준수하도록 DASH 세그먼트를 MBMS를 통해 전달하게 한다. HTTP-URL은 FLUTE 내 각각의 전달된 객체에 할당되며 HTTP-URL은 MPD 내 세그먼트 URL을 매핑한다. UE는 MPD에 포함된 HTTP URL과 FLUTE 패킷에 포함된 URL 정보와의 비교에 기초하여 수신된 DASH 표현을 식별하였을 것이다.
The DASH-formatted content may be delivered to the UE using an MBMS download delivery method and / or an HTTP-based delivery method. The MBMS-based DASH delivery option may not be available in some service areas, in which case these services may alternatively be provided via unicast. For delivery of DASH-formatted content over MBMS, the FLUTE transport protocol can be used. The FLUTE defined in RFC 3926 allows the client to pass the DASH segment over the MBMS to comply with the delivery of the DASH segment over HTTP / TCP. The HTTP-URL is assigned to each delivered object in FLUTE, and the HTTP-URL maps the segment URL in the MPD. The UE would have identified the received DASH representation based on a comparison of the HTTP URL included in the MPD with the URL information contained in the FLUTE packet.
실시예는 첨부 도면과 함께 다음과 같은 상세한 설명을 통해 쉽게 이해될 것이다. 이러한 설명을 용이하게 하기 위하여, 유사한 참조 부호는 유사한 구조의 구성요소를 지칭한다. 실시예는 예를 들어 예시되는 것이지 첨부 도면의 도면으로 제한하는 것으로 예시되지 않는다.
도 1은 여러 실시예에 따른 무선 통신 네트워크를 개략적으로 도시한다.
도 2는 여러 실시예에 따른 사용자 장비의 블록도이다.
도 3은 여러 실시예에 따른 프록시 터미널의 블록도이다.
도 4는 여러 실시예에 따른 프록시 터미널에 의해 수행될 수 있는 미디어 데이터의 분배를 도모하는 방법을 예시하는 플로우차트이다.
도 5는 여러 실시예에 따른 예시적인 컴퓨팅 시스템을 예시하는 블록도이다. BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: To facilitate this description, like reference numerals refer to like structural elements. The embodiments are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings.
1 schematically illustrates a wireless communication network according to various embodiments.
2 is a block diagram of user equipment in accordance with various embodiments.
3 is a block diagram of a proxy terminal in accordance with various embodiments.
4 is a flow chart illustrating a method of distributing media data that may be performed by a proxy terminal in accordance with various embodiments.
5 is a block diagram illustrating an exemplary computing system in accordance with various embodiments.
본 개시의 예시적인 실시예는 이것으로 제한되지 않지만, 멀티캐스트 방송 멀티미디어 서비스-어시스티드 콘텐츠 분배를 위한 방법, 시스템, 및 장치를 포함한다.Exemplary embodiments of the present disclosure include, but are not limited to, methods, systems, and apparatus for multicast broadcast multimedia service-assisted content distribution.
예시적인 실시예의 여러 양태는 본 기술에서 통상의 지식을 가진 자들이 자신의 작업의 요지를 본 기술에서 통상의 지식을 가진 다른 자들에게 전해 주기 위하여 공동으로 사용하는 용어를 이용하여 기술될 것이다. 그러나, 본 기술에서 통상의 지식을 가진 자들이라면 대안의 실시예가 기술된 양태의 단지 일부분만으로도 실시될 수 있다는 것을 인식할 것이다. 설명 목적 상, 특정한 번호, 재료, 및 구성이 예시적인 실시예의 철저한 이해를 제공하기 위해 설명된다. 그러나, 본 기술에서 통상의 지식을 가진 자에게는 특정한 세부사항이 없이도 대안의 실시예가 실시될 수 있다는 것이 인식될 것이다. 다른 예로, 예시적인 실시예를 방해하지 않도록 하기 위하여 널리 공지된 특징은 생략되거나 단순화된다.Various aspects of the illustrative embodiments will be described using terms commonly used by those of ordinary skill in the art to convey the substance of their work to others of ordinary skill in the art. However, those of ordinary skill in the art will recognize that alternative embodiments may be practiced with only a portion of the described aspects. For purposes of explanation, specific numbers, materials, and configurations are set forth in order to provide a thorough understanding of the exemplary embodiments. However, it will be appreciated by those skilled in the art that alternative embodiments may be practiced without the specific details. In other instances, well-known features have been omitted or simplified in order not to obscure the exemplary embodiments.
또한, 각종 동작들은 예시적인 실시예를 이해하는데 가장 도움이 되는 방법으로 복수의 이산적인 동작으로서 차례대로 기술될 것이다. 그러나, 설명의 순서는 이러한 동작들이 반드시 순서를 따른다는 것을 시사하는 것으로 해석되지 않아야 한다. 특히, 이러한 동작은 제시된 순서대로 수행될 필요는 없다. In addition, the various operations will be described in sequence as a plurality of discrete operations in a manner that is most helpful in understanding the exemplary embodiment. However, the order of description should not be construed to imply that such operations necessarily follow the sequence. In particular, these operations need not be performed in the order presented.
"일부 실시예에서" 라는 문구가 반복하여 사용된다. 이 문구는 일반적으로 동일한 실시예를 언급하지 않지만, 그럴 수도 있다. "포함하는", "갖는" 그리고 "구비하는"이라는 용어는 문맥이 그러하지 않다고 지적하지 않는 한 같은 뜻을 갖는다. "A 및/또는 B"라는 문구는 (A), (B), 또는 (A 및 B)를 의미한다. "A/B"라는 문구는 "A 및/또는 B"와 유사하게, (A), (B), 또는 (A 및 B)를 의미한다. "A, B 및 C 중 적어도 하나"라는 문구는 (A), (B), (C), (A 및 B), (A 및 C), (B 및 C) 또는 (A, B 및 C)를 의미한다. "(A)B"라는 문구는 (B) 또는 (A 및 B), 즉 A는 옵션이라는 것을 의미한다. The phrase "in some embodiments" is used repeatedly. This phrase generally does not refer to the same embodiment, but it may be. The terms "comprising", "having" and "having" have the same meaning unless the context indicates otherwise. The phrase "A and / or B" means (A), (B), or (A and B). The phrase "A / B" means (A), (B), or (A and B) similarly to "A and / or B ". (A), (B), (C), (A and B), (A and C), (B and C) or (A, B and C) . The phrase "(A) B" means (B) or (A and B), i.e., A is an option.
비록 특정 실시예가 본 출원에서 예시되고 기술되었지만, 본 기술에서 통상의 지식을 가진 자들이라면 각종 대안의 및/또는 동등한 구현예가, 본 발명의 실시예의 범주를 일탈함이 없이, 도시되고 기술된 특정 실시예를 대신하여 대체될 수 있다. 본 출원은 본 출원에서 논의된 실시예의 어떠한 각색이나 변경을 망라하고자 한다. 그러므로, 본 발명의 실시예는 청구범위와 그의 균등물에 의해서만 제한되는 것으로 분명하게 의도하고자 한다. Although specific embodiments have been illustrated and described in the present application, those of ordinary skill in the art will appreciate that various alternative and / or equivalent implementations may be made without departing from the scope of the embodiments of the present invention, May be substituted for the example. This application is intended to cover any adaptations or variations of the embodiments discussed in this application. It is therefore intended that the embodiments of this invention be limited only by the claims and their equivalents.
본 출원에서 사용된 바와 같은 용어 "모듈"은 서술한 기능을 제공하는 하나 이상의 소프트웨어 또는 펌웨어 프로그램, 조합 로직 회로, 및/또는 다른 적합한 컴포넌트를 실행하는 주문형 집적 회로(ASIC), 전자 회로, (공용, 전용, 또는 그룹) 프로세서 및/또는 (공용, 전용, 또는 그룹) 메모리를 지칭하거나, 그의 일부이거나 또는 그를 포함하는 것이라 말할 수 있다. The term "module" as used herein is intended to encompass an application specific integrated circuit (ASIC), an electronic circuit, a microprocessor, a microprocessor, , Dedicated, or group) processors, and / or (shared, dedicated, or group) memory.
도 1은 여러 실시예에 따른 무선 통신 네트워크(100)를 개략적으로 도시한다. 무선 통신 네트워크(100)(이하 "네트워크(100)"이라 함)는 진화된 범용 모바일 통신 시스템(UMTS) 육상 무선 액세스 네트워크(E-UTRAN)와 같은 3세대 파트너십 프로젝트(3GPP) 롱텀 에볼루션(LTE) 네트워크의 액세스 네트워크일 수 있다. 네트워크(100)는 무선 또는 유선 연결을 통해 사용자 장비(UE)(108)와 통신하도록 구성된 프록시 터미널(104)을 포함할 수 있다, 네트워크(100)는 MBMS 서비스를 여러 MBMS 클라이언트에게 전달하는 방송 멀티캐스트 서비스 센터(broadcast multicast service center (BMSC))(112) 및 미디어 콘텐츠를 저장하고 분배하는 미디어 서버(116)를 더 포함할 수 있다.1 schematically depicts a
일부 실시예에서, 프록시 터미널(104)은 기지국, 예를 들어, 네트워크(100)를 통하여 UE(108)와 무선 통신하도록 구성된 진화된 노드 B(eNB)일 수 있다. 다른 실시예에서, 프록시 터미널(104)은 다른 하나의 UE일 수 있다. 프록시 터미널(104)이 다른 하나의 UE인 실시예에서, 다른 UE는 eNB를 통해 BMSC(112)와 및/또는 네트워크(100)의 다른 컴포넌트와 통신할 수 있다. 다른 UE는 UE(108)가 네트워크(100)에 액세스할 수 있게 해주는 "핫 스팟"으로서 동작할 수 있다. 또 다른 실시예에서, 프록시 터미널(104)은 UE(108)에 포함될 수 있다. 즉, 프록시 터미널(104)의 기능 및 UE(108)의 기능은 하나의 터미널에서 호스트될 수 있다.In some embodiments, the
도 2에 도시된 바와 같이, UE(108)는 적어도 도시된 바와 같이 서로 결합된 미디어 클라이언트(220) 및 하이퍼텍스트 전송 프로토콜(HTTP) 액세스 클라이언트(224)를 포함할 수 있다. HTTP 액세스 클라이언트(224)는 네트워크(100)를 통한 무선 통신을 위해 UE(108)의 다수의 안테나(228) 중 하나 이상의 안테나와 또한 결합될 수 있다. UE(108)는 어떤 적절한 개수의 안테나(228)라도 포함할 수 있다. 안테나(228) 중 하나 이상의 안테나는 교대로 전송 또는 수신 안테나로서 사용될 수 있다. 대안으로 또는 부가적으로, 안테나(228) 중 하나 이상의 안테나는 전용의 수신 안테나 또는 전용의 송신 안테나일 수 있다.As shown in FIG. 2, the UE 108 may include at least a
도 3에 도시된 바와 같이, 프록시 터미널(104)은 적어도 도시된 바와 같이 서로 결합된 멀티미디어 방송 멀티캐스트 서비스(multimedia broadcast multicast service (MBMS)) 액세스 클라이언트(332), HTTP 서버 모듈(336) 및 메모리(340)를 포함할 수 있다. MBMS 액세스 클라이언트(332) 및/또는 HTTP 서버 모듈(336)은 프록시 터미널(104)의 하나 이상의 안테나(344)와 또한 결합될 수 있다. 여러 실시예에서, 비록 본 개시의 범위가 이러한 점으로 제한되지 않을 수 있지만, 프록시 터미널(104)은 적어도 UE(108)로 전송된 및/또는 BMSC(112)로부터 수신된 동시적인 전송 스트림의 개수만큼 많은 안테나(344)를 포함할 수 있다. 안테나(344) 중 하나 이상의 안테나는 교대로 전송 또는 수신 안테나로서 사용될 수 있다. 대안으로 또는 부가적으로, 안테나(344) 중 하나 이상의 안테나는 전용의 수신 안테나 또는 전용의 송신 안테나일 수 있다.3, the
여러 실시예에서, 프록시 터미널(104)의 MBMS 액세스 클라이언트(332)는 미디어 데이터 및 메타데이터를 포함하는 MBMS 전송을 수신할 수 있다. 프록시 터미널(104)은 나중에 UE(108)로 전송을 위해 미디어 데이터 및/또는 메타데이터를 캐시할 수 있다(예를 들어, 미디어 데이터 및/또는 메타데이터를 메모리(340)에 저장할 수 있다). MBMS 액세스 클라이언트(332)는 BMSC(112)로부터 무선으로 MBMS 전송을 수신할 수 있다. 예를 들면, MBMS 액세스 클라이언트(332)는 단방향 전송을 통한 파일 전송(file delivery over a unidirectional transport (FLUTE)) 프로토콜 및/또는 인터넷 프로토콜(internet protocol (IP)) 멀티캐스트 프로토콜을 이용하여 파일 전달을 통해 MBMS 전송을 수신할 수 있다. 여러 실시예에서, MBMS 액세스 클라이언트(332)는 사용자 서비스 검색(user service discovery (USD)) 시그널링을 통하여 BMSC(112)로부터 미디어 데이터 및 메타데이터를 수신할 수 있다. 일부 실시예에서, MBMS 전송은 HTTP 기반의 동적 적응형 스트리밍(DASH) 방식의 미디어 콘텐츠 및 연관된 MPD 메타데이터를 포함할 수 있다. BMSC(112)는 MBMS 전송을 프록시 터미널(104)을 포함한 복수의 프록시 터미널에 전송할 수 있다. DASH 방식의 미디어 콘텐츠의 경우, UE(108)의 HTTP 액세스 클라이언트(224)는 DASH 클라이언트라고도 지칭될 수 있다.In various embodiments, the MBMS access client 332 of the
BMSC(112)는 미디어 서버(116)로부터 미디어 데이터 및/또는 메타데이터를 수신할 수 있다. 일부 실시예에서, BMSC(112)는 HTTP 시그널링을 통하여 미디어 데이터 및 메타데이터를 수신할 수 있다. BMSC(112)와 미디어 서버(116) 사이의 통신 링크는 무선 및/또는 유선일 수 있다.The
여러 실시예에서, 프록시 터미널(104)의 HTTP 서버 모듈(336)은 적어도 미디어 데이터 및 메타데이터의 일부분을 HTTP 전송을 통하여 UE(108)에 전송할 수 있다. 일부 실시예에서, UE(108)의 HTTP 액세스 클라이언트(224)는 HTTP GET 또는 HTTP 부분 GET 요청을 발행함으로써 적어도 미디어 데이터 및 메타데이터의 일부분을 프록시 터미널(104)의 HTTP 서버 모듈(336)로부터 수신할 수 있다. 따라서, MBMS 전송은 미디어 데이터 및/또는 메타데이터를 복수의 프록시 터미널에 효과적으로 분배하는데 사용될 수 있다. 그 다음에, 프록시 터미널은 미디어 데이터 및/또는 메타데이터를 HTTP를 통해 연관된 UE들에게 분배할 수 있다.In various embodiments, the
일부 실시예에서, 미디어 데이터 및 메타데이터는 DASH 방식으로 되어 있을 수 있다. 예를 들어, 미디어 데이터는 비디오, 오디오, 및/또는 멀티미디어 프리젠테이션과 같은 미디어 프리젠테이션과 연관된 복수의 미디어 세그먼트를 포함할 수 있다. 미디어 세그먼트는 여러 주기의 미디어 프리젠테이션과 연관될 수 있고 그리고/또는 동일 주기의 미디어 프리젠테이션의 여러 버전일 수 있다. 이러한 버전은 여러 특성, 이를 테면, 비트 레이트, 프레임 레이트, 해상도, 코덱 방식, 및/또는 기타 특성을 포함할 수 있다.In some embodiments, the media data and metadata may be in DASH format. For example, the media data may include a plurality of media segments associated with media presentations, such as video, audio, and / or multimedia presentations. The media segment may be associated with multiple periods of media presentation and / or may be multiple versions of a media presentation of the same period. Such a version may include various characteristics, such as bit rate, frame rate, resolution, codec format, and / or other characteristics.
DASH-형식 콘텐츠의 메타데이터는 미디어 데이터와 연관된 미디어 프리젠테이션 기술(media presentation description (MPD)) 메타데이터를 포함할 수 있다. MPD 메타데이터는 콘텐츠 및/또는 미디어 데이터에 포함된 미디어 세그먼트의 특성과 관련된 정보, 및/또는 미디어 데이터를 포함하는 MBMS 전송과 연관된 파라미터를 포함할 수 있다. The metadata of the DASH-formatted content may include media presentation description (MPD) metadata associated with the media data. The MPD metadata may include information related to the characteristics of the media segments included in the content and / or media data, and / or parameters associated with the MBMS transmission including media data.
여러 실시예에서, UE(108)의 미디어 클라이언트(220)는 또한 MPD 메타데이터에 기초하여, HTTP 요청을 이용하여(예를 들어, HTTP 액세스 클라이언트(224)를 통해), BMSC(112) 또는 미디어 서버(116)로부터 하나 이상의 미디어 세그먼트를 요청할 수 있다. 미디어 클라이언트(220)는 연속하는 주기의 미디어 세그먼트를 요청하여 미디어 프리젠테이션을 UE(108)의 사용자에게 제공할 수 있다. 미디어 클라이언트(220)는 하나 이상의 조건, 이를 테면, 이용가능한 대역폭, 네트워크 상태, 사용자 선호도, 장치 역량(예를 들면, 디스플레이 해상도, 처리 역량, 메모리 자원 등), 및 장치 상태(예를 들면, 다른 처리/메모리 오버헤드)에 기초하여 어느 미디어 세그먼트 버전을 요청할지를 동적으로 바꿀 수 있다. In various embodiments, the
여러 실시예에서, 프록시 터미널(104)의 HTTP 서버 모듈(336)은 HTTP 요청을 UE(108)의 HTTP 액세스 클라이언트(224)로부터 수신할 수 있다. HTTP 서버 모듈(336)은 그 요청에 대한 응답으로 요청된 미디어 세그먼트를 HTTP를 통해 UE(108)에 전송할 수 있다. In various embodiments, the
통상의 시스템에서, UE(108)에 의한 HTTP 요청은 하나 이상의 중재 장치(예를 들면, eNB, HTTP 캐시 등)를 통해 원격 HTTP 서버에 포워딩된다. 이와 대조적으로, 본 출원에서 설명된 프록시 터미널(104)은 UE(108)에 의한 HTTP 요청에 직접 응답한다. HTTP 요청은 미디어 서버(116)로 포워드되지 않을 수 있다. 따라서, 프록시 터미널(104)은 네트워크(100)에서 줄어든 시그널링을 제공할 수 있고 및/또는 미디어 프리젠테이션을 액세스하는 UE(108)에게 줄어든 지연(예를 들면, 스타트업 지연)을 제공할 수 있다. 부가적으로, 본 출원에 기술된 MBMS-어시스티드 프로세스는 UE(108)에게 투명할 수 있다.In a typical system, the HTTP request by the UE 108 is forwarded to the remote HTTP server via one or more arbitration devices (eNB, HTTP cache, etc.). In contrast, the
비록 미디어 데이터 및 메타데이터가 DASH-형식의 미디어 데이터 및 메타데이터를 참조하여 기술되지만, 본 개시는 이러한 점으로 제한되지 않는다. 다른 실시예에서, 프록시 터미널(104)은 UE(108)에게 임의의 적절한 형태의 미디어 데이터 및/또는 메타데이터를 분배하는데 사용될 수 있다.Although media data and metadata are described with reference to media data and metadata in DASH format, the present disclosure is not limited in this respect. In another embodiment, the
일부 실시예에서, 프록시 터미널(104)은 BMSC로부터 이용 가능한 특정한 어진 미디어 프리젠테이션을 위한 미디어 데이터의 일부분(예를 들어, 선택된 미디어 세그먼트)만을 수신 및/또는 캐시할 수 있다. 프록시 터미널(104)은 BMSC(112)로부터 이용 가능한 미디어 데이터와 연관된 제1 MPD 메타데이터를 BMSC(112)로부터 수신할 수 있다. 프록시 터미널(104)은 UE(108)에게 UE에게 HTTP 전송하는데 이용 가능한 미디어 데이터의 서브셋 또는 수퍼셋과 연관된 제2 MPD 메타데이터를 생성 및/또는 전송할 수 있다. 프록시 터미널(104)은 예를 들어, 스케줄링 규제, 메모리 규제, 네트워크 조건, 및/또는 메모리/대역폭을 타 미디어 프리젠테이션에 허용하는 것으로 인하여, 메타데이터의 일부분만을 수신 및/또는 캐시할 수 있다.In some embodiments, the
일부 실시예에서, 프록시 터미널(104)은 미디어 프리젠테이션의 소정 부분에 대한 표현의 서브셋(예를 들면, 품질 레벨)에 대응하는 이용 가능한 미디어 세그먼트의 서브셋을 캐시할 수 있다.In some embodiments, the
일부 실시예에서, 프록시 터미널(104)은 미디어 프리젠테이션의 시작 부분에 대응하는 이용 가능한 미디어 세그먼트의 서브셋을 캐시할 수 있다. 이것은 사용자에 의해 미디어 프리젠테이션의 재생이 요청될 때 미디어 프리젠테이션의 빠른 시작을 도모할 수 있다. 추가의 미디어 세그먼트는 재생이 요청된 이후 요청될 수 있다. In some embodiments, the
프록시 터미널(104)에 의해 캐시된 미디어 프리젠테이션 및/또는 미디어 세그먼트는 어떤 적절한 기준, 이를 테면, 미디어 프리젠테이션 및/또는 미디어 세그먼트의 정해진 또는 예측된 대중성에 기초하여 선택될 수 있다. 일부 실시예에서, 미디어 프리젠테이션은 미디어 프리젠테이션을 식별하는 (예를 들어, 미디어 프리젠테이션이 이용 가능해질 때 및/또는 나중에 사용자가 그 미디어 프리젠테이션을 재생하고 싶다고 표시하는 사용자 표시(user indication)에 기초하여 선택될 수 있다. 이것은 이러한 점에서 제한되지 않지만 프록시 터미널(104)이 UE(108)에 포함되어 있는 실시예에서 특히 도움될 수 있다. 일부 실시예에서, UE(108)는 또한 미디어 프리젠테이션의 하나 이상의 적절한 프리젠테이션의 선택을 용이하게 하기 위하여 UE(108)의 하나 이상의 기능 및/또는 사용자의 품질/경험 선호도를 표시하여 보여줄 수 있다. 예를 들어, 사용자는 고 비트레이트 프리젠테이션과 대비하여 재생 지연이 적은 저 비트레이트 프리젠테이션을 더 선호할 수 있다.The media presentation and / or media segment cached by the
여러 실시예에서, 프록시 터미널(104)의 MBMS 액세스 클라이언트(332)는 MBMS 전송을 수신 및/또는 캐시하는 하나 이상의 MBMS 기능을 포함할 수 있다. 예를 들어, MBMS 액세스 클라이언트(332)는 BMSC(112)를 이용하여 MBMS 서비스를 활성화할 수 있으며 USD 시그널링을 통해 MPD 메타데이터를 수신할 수 있다. 일부 실시예에서, MBMS 액세스 클라이언트(332)는 MBMS 전송과 연관된 랩터 코드(Raptor code)와 같은 애플리케이션 계층 포워드 에러 정정(application layer forward error correction : AL-FEC) 코드를 디코딩할 수 있다. 부가적으로 또는 대안으로, MBMS 액세스 클라이언트(332)는 부정확하게 수신된 미디어 데이터 및/또는 메타데이터의 일부분을 검색하는 하나 이상의 복구 절차를 실행할 수 있다. 일부 실시예에서, MBMS 액세스 클라이언트(332)는 전달 검증 정보(delivery verification information) 및/또는 수신 통계(reception statistics)를 이용하여 BMSC(112)에게 보고서를 송신할 수 있다.In various embodiments, the MBMS access client 332 of the
앞에서 논의한 바와 같이, 프록시 터미널(104)은 네트워크(100)의 eNB 또는 다른 하나의 UE에 포함될 수 있다. UE(108)는 네트워크(100)를 통하여 미디어 데이터 및 메타데이터 이외의 다른 데이터를 전송하고 및/또는 수신하는 eNB 또는 다른 UE와의 통신 링크를 가질 수 있다. 다른 실시예에서, 프록시 터미널(104)은 UE(108)에 포함될 수 있다. 즉 프록시 터미널(104)의 기능 및 UE(108)의 기능은 하나의 터미널에서 호스트될 수 있다. 이러한 실시예에서, HTTP 서버 모듈(336)은 UE(108)의 HTTP 액세스 클라이언트(224)와의 유선 또는 무선 연결을 가질 수 있다.As discussed above, the
도 4는 여러 실시예에 따라서 UE의 HTTP 액세스 클라이언트(예를 들면, UE(108)의 HTTP 액세스 클라이언트(224))에게 미디어 데이터의 분배를 용이하게 해주는 방법(400)을 도시한다. 방법(400)은 프록시 터미널(예를 들면, 프록시 터미널(104))에 의해 실행될 수 있다. 프록시 터미널은, 예를 들면, eNB 또는 다른 하나의 UE에 포함될 수 있다. 대안으로, 프록시 터미널은 HTTP 액세스 클라이언트를 포함하는 동일한 UE 터미널에 포함될 수 있다. 일부 실시예에서, 프록시 터미널은 실행될 때 프록시 터미널로 하여금 방법(400)을 실행하게 만드는 명령어가 저장된 하나 이상의 컴퓨터-판독가능 매체를 포함할 수 있고 및/또는 그 매체에 액세스할 수 있다.4 illustrates a
(404)에서, 프록시 터미널은 BMSC(예를 들면, BMSC(112))를 이용하여 MBMS 서비스를 활성화할 수 있다. 프록시 터미널은 예를 들면, UE로부터의 명령에 응답하여 활성화되는 것이 아닌 사전적 조치로 MBMS 서비스를 활성화할 수 있다.(404), the proxy terminal may activate the MBMS service using the BMSC (e.g., BMSC 112). The proxy terminal may activate the MBMS service in a proactive manner, for example, rather than being activated in response to a command from the UE.
(408)에서, 프록시 터미널은 USD 시그널링을 통하여 BSMC로부터 메타데이터(예를 들면, MPD 메타데이터)를 수신할 수 있다. 메타데이터는 BMSC에 의해 방송될 미디어 데이터와 연관될 수 있다. 메타데이터는 UE에게 넘겨질 수 있다. 일부 실시예에서, 메타데이터는 정정된 다음 UE에게 넘겨질 수 있다. 예를 들면, 메타데이터는 UE에게 HTTP 전송하는데 유용한 미디어 데이터의 서브셋 또는 수퍼셋에 관련된 정보를 포함하도록 정정될 수 있다.At 408, the proxy terminal may receive metadata (e. G., MPD metadata) from the BSMC via USD signaling. The metadata may be associated with media data to be broadcasted by the BMSC. The metadata may be passed to the UE. In some embodiments, the metadata may be corrected and then passed on to the UE. For example, the metadata may be corrected to include information related to a subset or superset of media data useful for HTTP transmission to the UE.
(412)에서, 프록시 터미널은 BMSC로부터 미디어 데이터를 포함하는 MBMS 전송을 수신할 수 있다. 미디어 데이터는 DASH 방식으로 되어 있을 수 있으며 미디어 프리젠테이션과 연관된 복수의 미디어 세그먼트를 포함할 수 있다.At 412, the proxy terminal may receive an MBMS transmission that includes media data from the BMSC. The media data may be in DASH format and may include a plurality of media segments associated with the media presentation.
(416)에서, 프록시 터미널은 수신된 미디어 데이터를 캐시할 수 있다. 이러한 캐싱은 미디어 데이터를 프록시 터미널 상의 로컬 저장소에 저장하는 것을 포함한다.At 416, the proxy terminal may cache the received media data. Such caching involves storing media data in a local repository on a proxy terminal.
(420)에서, 프록시 터미널은 HTTP 액세스 클라이언트로부터 적어도 캐시된 미디어 데이터의 일부분을 수신하는 HTTP 요청을 수신할 수 있다. 예를 들면, HTTP 요청은 캐시된 미디어 데이터의 하나 이상의 미디어 세그먼트를 식별할 수 있다. HTTP 액세스 클라이언트는 UE(108)에서 호스트될 수 있다. 일부 실시예에서, MBMS 액세스 클라이언트, 메모리, HTTP 서버 및 HTTP 액세스 클라이언트 기능은 하나의 터미널에서 호스트될 수 있다. 다른 실시예에서, MBMS 액세스 클라이언트, 메모리, 및 HTTP 서버는 eNB 또는 다른 하나의 UE와 같은 다른 하나의 터미널에서 호스트될 수 있다. At 420, the proxy terminal may receive an HTTP request to receive at least a portion of the cached media data from the HTTP access client. For example, an HTTP request may identify one or more media segments of cached media data. An HTTP access client may be hosted at the UE 108. In some embodiments, the MBMS access client, memory, HTTP server, and HTTP access client functionality may be hosted in one terminal. In another embodiment, the MBMS access client, memory, and HTTP server may be hosted at another terminal, such as an eNB or another UE.
(424)에서, 프록시 터미널은 요청된 미디어 데이터를 HTTP 시그널링을 통하여 HTTP 액세스 클라이언트에 전송할 수 있다. 프록시 터미널은 전송을 위하여 로컬 저장소로부터 요청된 미디어 데이터를 검색할 수 있다. 따라서, HTTP 액세스 클라이언트로부터의 HTTP 요청은 프록시 터미널에 의해 가로채어지되 원격 서버로 포워드되지 않을 수 있다. At 424, the proxy terminal may send the requested media data to the HTTP access client via HTTP signaling. The proxy terminal may retrieve the requested media data from the local store for transmission. Thus, an HTTP request from an HTTP access client may be intercepted by the proxy terminal and not forwarded to the remote server.
프록시 터미널은 이후 UE로부터 추가적인 HTTP 요청을 수신하여 미디어 데이터의 다른 부분을 검색할 수 있다. The proxy terminal may then receive additional HTTP requests from the UE to retrieve other portions of the media data.
본 출원에 기술된 프록시 터미널(104), UE(108), 및/또는 BMSC(112)는 적절한 하드웨어 및/또는 소프트웨어를 이용하여 원하는 구성의 시스템으로 구현될 수 있다. 도 5는, 일 실시예로서, 하나 이상의 프로세서(들)(504)와, 프로세서(들)(504) 중 적어도 하나와 결합된 시스템 제어 로직(508)과, 시스템 제어 로직(508)과 결합된 시스템 메모리(512)와, 시스템 제어 로직(508)과 결합된 비휘발성 메모리(NVM)/저장소(516), 시스템 제어 로직(508)과 결합된 네트워크 인터페이스(520), 및 시스템 제어 로직(508)과 결합된 입력/출력(I/O) 장치(532)를 포함하는 예시적인 시스템(500)을 도시한다.The
프로세서(들)(504)는 하나 이상의 싱글-코어 또는 멀티-코어 프로세서를 포함할 수 있다. 프로세서(들)(504)는 범용 프로세서와 전용 프로세서(예를 들면, 그래픽스 프로세서, 애플리케이션 프로세서, 베이스밴드 프로세서 등)의 어떤 조합이라도 포함할 수 있다.The processor (s) 504 may include one or more single-core or multi-core processors. The processor (s) 504 may include any combination of a general purpose processor and a dedicated processor (e.g., a graphics processor, an application processor, a baseband processor, etc.).
일 실시예의 시스템 제어 로직(508)은 시스템 제어 로직(508)과 통신하여 프로세서(들)(504) 중 적어도 하나 및/또는 임의의 적절한 장치 또는 컴포넌트와의 임의의 적절한 인터페이스를 제공하는 어떠한 적절한 인터페이스 컨트롤러라도 포함할 수 있다.The system control logic 508 of one embodiment may communicate with the system control logic 508 to communicate with any suitable interface or any suitable device or component that provides any suitable interface with at least one of the processor (s) 504 and / Controller may be included.
일 실시예의 시스템 제어 로직(508)은 인터페이스를 시스템 메모리(512)에 제공하는 하나 이상의 메모리 컨트롤러(들)를 포함할 수 있다. 시스템 메모리(512)는, 예를 들면, 시스템(500)에 필요한 데이터 및/또는 명령을 로드하고 저장하는데 사용될 수 있다. 일 실시예의 시스템 메모리(512)는, 예를 들면, 적절한 다이나믹 랜덤 액세스 메모리(DRAM)와 같은 어떤 적절한 휘발성 메모리라도 포함할 수 있다.The system control logic 508 of one embodiment may include one or more memory controller (s) that provide an interface to the system memory 512. The system memory 512 may be used, for example, to load and store data and / or instructions required by the
NVM/저장소(516)는, 예를 들면, 데이터 및/또는 명령을 저장하는데 사용되는 하나 이상의 유형의 비일시적 컴퓨터-판독가능 매체를 포함할 수 있다. NVM/저장소(516)는, 예를 들어, 플래시 메모리와 같은 어떤 적절한 비휘발성 메모리라도 포함할 수 있고, 및/또는, 예를 들어, 하나 이상의 하드 디스크 드라이브(들)(HDD(s)), 하나 이상의 컴팩트 디스크(CD) 드라이브(들), 및/또는 하나 이상의 디지털 다기능 디스크(DVD) 드라이브(들)과 같은 어떤 적절한 비휘발성 저장 장치(들)라도 포함할 수 있다.NVM /
NVM/저장소(516)는 시스템(500)이 설치된 장치의 물리적으로 일부분의 저장소 자원을 포함할 수 있거나 반드시 그 장치의 일부는 아니지만 그 장치에 의해 액세스될 수 있다. 예를 들면, NVM/저장소(516)는 네트워크 인터페이스(520)를 거쳐 네트워크를 통해 및/또는 입력/출력(I/O) 장치(532)를 통해 액세스될 수 있다. The NVM /
네트워크 인터페이스(520)는 하나 이상의 네트워크(들)를 통해 및/또는 다른 임의의 적절한 장치를 이용하여 통신하도록 시스템(500)에게 무선 인터페이스를 제공하는 송수신기(522)를 가질 수 있다. 송수신기(522)는 UE(108)의 HTTP 액세스 클라이언트(120) 또는 프록시 터미널(104)의 MBMS 모듈 및/또는 HTTP 모듈(132)을 구현할 수 있다. 여러 실시예에서, 송수신기(522)는 시스템(500)의 다른 컴포넌트와 통합될 수 있다. 예를 들면, 송수신기(522)는 프로세서(들)(504)의 프로세서, 시스템 메모리(512)의 메모리, 및 NVM/저장소(516)의 NVM/저장소를 포함할 수 있다. 네트워크 인터페이스(520)는 어떠한 적절한 하드웨어 및/또는 펌웨어라도 포함될 수 있다. 네트워크 인터페이스(520)는 복수의 입력, 복수의 출력 무선 인터페이스를 제공하는 복수의 안테나를 포함될 수 있다. 일 실시예의 네트워크 인터페이스(520)는, 예를 들면, 유선 네트워크 어댑터, 무선 네트워크 어댑터, 전화 모뎀, 및/또는 무선 모뎀을 포함할 수 있다. The network interface 520 may have a
일 실시예에서, 프로세서(들)(504) 중 적어도 하나의 프로세서는 시스템 제어 로직(508)의 하나 이상의 컨트롤러(들)의 로직과 함께 패키지될 수 있다. 일 실시예에서, 프로세서(들)(504) 중 적어도 하나의 프로세서는 시스템 제어 로직(508)의 하나 이상의 컨트롤러의 로직과 함께 패키지되어 시스템 인 패키지(System In Package (SIP))를 형성할 수 있다. 일 실시예에서, 프로세서(들)(504) 중 적어도 하나의 프로세서는 시스템 제어 로직(508)의 하나 이상의 컨트롤러(들)의 로직과 함께 동일한 다이 상에서 집적될 수 있다. 일 실시예에서, 프로세서(들)(504) 중 적어도 하나의 프로세서는 시스템 제어 로직(508)의 하나 이상의 컨트롤러(들)의 로직과 함께 동일한 다이 상에서 집적되어 시스템 온 칩(System On Chip (SoC))을 형성할 수 있다.In one embodiment, at least one processor of the processor (s) 504 may be packaged with the logic of one or more controller (s) of the system control logic 508. In one embodiment, at least one processor of the processor (s) 504 may be packaged with the logic of one or more controllers of the system control logic 508 to form a System In Package (SIP) . In one embodiment, at least one processor of the processor (s) 504 may be integrated on the same die with the logic of one or more controller (s) of the system control logic 508. [ In one embodiment, at least one of the processor (s) 504 is integrated on the same die with the logic of one or more controller (s) of the system control logic 508 to provide a system on chip (SoC) ) Can be formed.
여러 실시예에서, I/O 장치(532)는 시스템(500)과의 사용자 상호작용을 가능하도록 설계된 사용자 인터페이스와, 시스템(500)과의 주변 컴포넌트 상호작용(peripheral component interaction)을 가능하도록 설계된 주변 컴포넌트 인터페이스(peripheral component interfaces), 및/또는 환경 조건 및/또는 시스템(500)과 관련한 위치 정보를 결정하도록 설계된 센서를 포함할 수 있다.O device 532 includes a user interface that is designed to enable user interaction with
여러 실시예에서, 사용자 인터페이스는, 이것으로 제한되지 않지만, 디스플레이(예를 들면, 액정 디스플레이, 터치 스크린 디스플레이 등), 스피커, 마이크로폰, 하나 이상의 카메라(예를 들면, 스틸 카메라 및/또는 비디오 카메라), 플래시(예를 들면, 발광 다이오드 플래시), 및 키보드를 포함할 수도 있다. In various embodiments, the user interface may include a display (e.g., a liquid crystal display, a touch screen display, etc.), a speaker, a microphone, one or more cameras (e.g., still cameras and / or video cameras) , A flash (e.g., a light emitting diode flash), and a keyboard.
여러 실시예에서, 주변 컴포넌트 인터페이스는, 이것으로 제한되지 않지만, 비휘발성 메모리 포트, 범용 직렬 버스(USB) 포트, 오디오 잭, 및 파워 서플라이 인터페이스를 포함될 수 있다.In various embodiments, the peripheral component interface may include, but is not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface.
여러 실시예에서, 센서는, 이것으로 제한되지 않지만, 자이로 센서, 가속도계, 근접 센서, 주변 광 센서, 및 측위 유닛을 포함할 수 있다. 측위 유닛은 또한 측위 네트워크, 예를 들면, 글로벌 포지셔닝 시스템(GPS) 위성의 컴포넌트와 통신하는 네트워크 인터페이스(520)의 일부 또는 그와 상호작용할 수 있다. In various embodiments, the sensor may include, but is not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also interact with, or interact with, a location network, for example, a network interface 520 in communication with a component of a Global Positioning System (GPS) satellite.
여러 실시예에서, 시스템(500)은 모바일 컴퓨팅 장치, 이를 테면, 이것으로 제한되지 않지만, 랩탑 컴퓨팅 장치, 태블릿 컴퓨팅 장치, 넷북, 스마트폰 등일 수 있다. 여러 실시예에서, 시스템(500)은 더 많거나 더 적은 컴포넌트 및/또는 여러 아키텍처를 가질 수 있다. In various embodiments, the
본 개시의 여러 실시예에서, 프록시 터미널에 의해 실행될 수 있는 방법이 제공된다. 이 방법은 프록시 터미널에 의해, 방송 멀티캐스트 서비스 센터(broadcast multicast service center (BMSC))를 이용하여 멀티캐스트 방송 멀티미디어 서비스(multicast broadcast multimedia service (MBMS))를 활성화하는 단계; 사용자 서비스 검색(user service discovery (USD)) 시그널링을 통하여 BMSC로부터 미디어 프리젠테이션 기술(media presentation description (MPD)) 메타데이터 - MPD 메타데이터는 미디어 데이터와 연관됨 - 를 수신하는 단계; MBMS 전송을 통하여 BMSC로부터 MPD 메타데이터와 연관된 미디어 데이터의 적어도 일부분을 수신하는 단계; 수신된 미디어 데이터 및 메타데이터를 캐시하는 단계; 캐시된 미디어 데이터 및 메타데이터의 적어도 일부분을 수신하기 위해 사용자 장비(user equipment (UE))에서 호스트되는 HTTP 액세스 클라이언트로부터 하이퍼텍스트 전송 프로토콜(hypertext transfer protocol (HTTP)) 요청을 수신하는 단계; 및 HTTP 요청에 대한 응답으로, 캐시된 미디어 데이터 및 메타데이터의 적어도 일부분을 HTTP 시그널링을 통하여 UE에 전송하는 단계를 포함할 수 있다. 방법의 일 실시예에서, 캐싱은 수신한 미디어 데이터 및 MPD 메타데이터를 HTTP 전송을 통해 나중 전송을 위해 저장하는 단계를 포함하며, HTTP 요청은 수신한 미디어 데이터 및 메타데이터를 캐싱한 이후 UE로부터 수신된다.In various embodiments of the present disclosure, a method is provided that can be executed by a proxy terminal. The method comprises activating, by a proxy terminal, a multicast broadcast multimedia service (MBMS) using a broadcast multicast service center (BMSC); Receiving media presentation description (MPD) metadata from a BMSC via user service discovery (USD) signaling; MPD metadata associated with media data; Receiving at least a portion of media data associated with MPD metadata from the BMSC via MBMS transmission; Caching received media data and metadata; Receiving a hypertext transfer protocol (HTTP) request from an HTTP access client hosted at a user equipment (UE) to receive at least a portion of cached media data and metadata; And transmitting at least a portion of the cached media data and metadata to the UE via HTTP signaling in response to the HTTP request. In one embodiment of the method, the caching includes storing received media data and MPD metadata for later transmission via HTTP transmission, wherein the HTTP request is received from the UE after caching the received media data and metadata do.
본 개시의 다른 실시예에서, 미디어 데이터의 통신을 위한 프록시 터미널이 제공된다. 프록시 터미널은 방송 멀티캐스트 서비스 센터(broadcast multicast service center (BMSC))를 이용하여 멀티캐스트 방송 멀티미디어 서비스(multicast broadcast multimedia service (MBMS))를 활성화하는 수단; 사용자 서비스 검색(user service discovery (USD)) 시그널링을 통하여 BMSC로부터 미디어 프리젠테이션 기술(media presentation description (MPD)) 메타데이터 - MPD 메타데이터는 미디어 데이터와 연관됨 - 를 수신하는 수단; MBMS 전송을 통하여 BMSC로부터 MPD 메타데이터와 연관된 미디어 데이터의 적어도 일부분을 수신하는 수단; 수신된 미디어 데이터 및 메타데이터를 캐시하는 수단; 캐시된 미디어 데이터 및 메타데이터의 적어도 일부분을 수신하기 위해 사용자 장비(user equipment (UE))에서 호스트되는 HTTP 액세스 클라이언트로부터 하이퍼텍스트 전송 프로토콜(hypertext transfer protocol (HTTP)) 요청을 수신하는 수단; 및 HTTP 요청에 대한 응답으로, 캐시된 미디어 데이터 및 메타데이터의 적어도 일부분을 HTTP 시그널링을 통하여 UE에 전송하는 수단을 포함할 수 있다. 프록시 터미널의 일부 실시예에서, 캐싱하는 수단은 수신한 미디어 데이터 및 MPD 메타데이터를 HTTP 전송을 통하여 나중에 전송하기 위해 저장하는 수단을 포함하며, HTTP 요청은 수신한 미디어 데이터 및 메타데이터를 캐싱한 이후 UE로부터 수신된다.In another embodiment of the present disclosure, a proxy terminal for communication of media data is provided. The proxy terminal comprises means for activating a multicast broadcast multimedia service (MBMS) using a broadcast multicast service center (BMSC); Means for receiving media presentation description (MPD) metadata from a BMSC via user service discovery (USD) signaling; MPD metadata associated with media data; Means for receiving at least a portion of media data associated with MPD metadata from the BMSC via MBMS transmission; Means for caching received media data and metadata; Means for receiving a hypertext transfer protocol (HTTP) request from an HTTP access client hosted at a user equipment (UE) to receive at least a portion of cached media data and metadata; And means for transmitting at least a portion of the cached media data and metadata to the UE via HTTP signaling in response to the HTTP request. In some embodiments of the proxy terminal, the means for caching comprises means for storing the received media data and MPD metadata for later transmission over an HTTP transport, wherein the HTTP request is for caching received media data and metadata Is received from the UE.
전술한 방법 또는 프록시 터미널의 일부 실시예에서, 미디어 데이터 및 MPD 메타데이터는 HTTP 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over HTTP (DASH)) 포맷으로 구성되어 있다. 전술한 방법 및 프록시 터미널의 일부 실시예에서, 수신된 MPD 메타데이터는 제1 MPD 메타데이터이며, 프록시 터미널은 UE에게 HTTP 전송에 유용한 미디어 데이터의 서브셋 또는 수퍼셋과 연관된 제2 MPD 메타데이터를 UE에게 전송하는 수단을 더 포함한다.In some embodiments of the above method or proxy terminal, the media data and MPD metadata are configured in HTTP based dynamic adaptive streaming over HTTP (DASH) format. In some embodiments of the above-described method and proxy terminal, the received MPD metadata is first MPD metadata, and the proxy terminal sends second MPD metadata associated with a subset or superset of media data, To the mobile terminal.
전술한 방법 또는 프록시 터미널의 일부 실시예에서, 프록시 터미널은 진화된 노드 B(eNB) 또는 다른 하나의 UE에 포함되어 있다.In some embodiments of the above method or proxy terminal, the proxy terminal is included in an evolved Node B (eNB) or another UE.
본 개시의 다른 실시예에서, 미디어 데이터의 통신을 위한 프록시 터미널이 제공되며, 이 프록시 터미널은 미디어 데이터 및 메타데이터를 포함하는 MBMS 전송을 수신하고, 미디어 데이터 및 메타데이터를 나중의 전송을 위해 캐시하도록 구성된 멀티미디어 방송 및 멀티캐스트 서비스(multimedia broadcast and multicast service (MBMS)) 액세스 클라이언트와, 미디어 데이터 및 메타데이터가 캐시된 이후 사용자 장비(user equipment (UE))의 HTTP 액세스 클라이언트로부터 HTTP 요청을 수신하고, 미디어 데이터 및 메타데이터의 적어도 일부분을 HTTP 전송을 통하여 UE의 HTTP 액세스 클라이언트로 전송하도록 구성된 하이퍼텍스트 전송 프로토콜(hypertext transfer protocol (HTTP)) 서버 모듈을 포함한다. In another embodiment of the present disclosure, there is provided a proxy terminal for communication of media data, the proxy terminal receiving an MBMS transmission comprising media data and metadata, and for transferring media data and metadata to a cache A multimedia broadcast and multicast service (MBMS) access client configured to receive an HTTP request from an HTTP access client of a user equipment (UE) after media data and metadata are cached, And a hypertext transfer protocol (HTTP) server module configured to transmit at least a portion of the media data and metadata to the HTTP access client of the UE via HTTP transfer.
프록시 터미널의 일부 실시예에서, 미디어 데이터 및 메타데이터는 HTTP 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over HTTP (DASH)) 방식으로 구성되어 있다. 일부 그러한 실시예에서, MBMS 액세스 클라이언트는 미디어 데이터와 연관된 제1의 미디어 프리젠테이션 기술(media presentation description (MPD)) 메타데이터를 수신하도록 구성되며, HTTP 서버 모듈은 제2 MPD 메타데이터를 생성하여 UE에게 전송하도록 더 구성되며, 제2 MPD는 UE에게 HTTP 전송에 유용한 미디어 데이터의 서브셋 또는 수퍼셋과 연관된다. 프록시 터미널의 일부 실시예에서, HTTP 서버 모듈은 HTTP 액세스 클라이언트로부터 HTTP 액세스 클라이언트에게 전송될 DASH 포맷 미디어 데이터의 세그먼트를 식별하는 HTTP 요청을 수신하도록 구성된다. In some embodiments of the proxy terminal, the media data and metadata are configured in HTTP based dynamic adaptive streaming over HTTP (DASH). In some such embodiments, the MBMS access client is configured to receive a first media presentation description (MPD) metadata associated with the media data, and the HTTP server module generates second MPD metadata, And the second MPD is associated with a subset or superset of media data useful for HTTP transmission to the UE. In some embodiments of the proxy terminal, the HTTP server module is configured to receive an HTTP request identifying a segment of DASH formatted media data to be transmitted from the HTTP access client to the HTTP access client.
프록시 터미널의 일부 실시예에서, 프록시 터미널은 무선 통신 네트워크를 통하여 상기 UE와 통신하도록 구성된 진화된 노드 B(eNB)에 포함된다. 프록시 터미널의 다른 실시예에서, 프록시 터미널은 다른 하나의 UE에 포함된다. 프록시 터미널의 또 다른 실시예에서, 프록시 터미널은 HTTP 액세스 클라이언트를 포함하는 동일한 UE에 포함되어 있다.In some embodiments of the proxy terminal, the proxy terminal is included in an evolved Node B (eNB) configured to communicate with the UE via a wireless communication network. In another embodiment of the proxy terminal, the proxy terminal is included in the other UE. In another embodiment of the proxy terminal, the proxy terminal is included in the same UE including an HTTP access client.
프록시 터미널의 일부 실시예에서, MBMS 액세스 클라이언트는 단방향 전송을 통한 파일 전달(file delivery over unidirectional transport (FLUTE)) 프로토콜을 통해 MBMS 전송을 수신하도록 구성된다. 프록시 터미널의 일부 실시예에서, MBMS 액세스 클라이언트는 인터넷 프로토콜(IP) 멀티캐스트 프로토콜을 통해 MBMS 전송을 수신하도록 구성된다. 프록시 터미널의 일부 실시예에서, MBMS 전송은 방송 멀티캐스트 서비스 센터(broadcast multicast service center (BMSC))로부터 수신되며, MBMS 액세스 클라이언트는 전달 검증 정보(delivery verification information) 또는 수신 통계(reception statistics)를 이용하여 BMSC에게 보고서를 송신하도록 더 구성된다.In some embodiments of the proxy terminal, the MBMS access client is configured to receive the MBMS transmission over a file delivery over unidirectional transport (FLUTE) protocol. In some embodiments of the proxy terminal, the MBMS access client is configured to receive MBMS transmissions over an Internet Protocol (IP) multicast protocol. In some embodiments of the proxy terminal, the MBMS transmission is received from a broadcast multicast service center (BMSC), and the MBMS access client uses delivery verification information or reception statistics And send the report to the BMSC.
프록시 터미널의 일부 실시예에서, MBMS 액세스 클라이언트는 상기 MBMS 전송과 연관된 애플리케이션 계층 포워드 에러 정정(application layer forward error correction (AL-FEC)) 코드를 디코딩하도록 또는 미디어 데이터 또는 메타데이터의 부정확하게 수신된 일부분을 검색하는 하나 이상의 복구 절차를 실행하도록 구성된다. 프록시 터미널의 일부 실시예에서, MBMS 액세스 클라이언트는 미디어 데이터 또는 메타데이터의 부정확하게 수신된 일부분을 검색하는 하나 이상의 복구 절차를 실행하도록 더 구성된다.In some embodiments of the proxy terminal, the MBMS access client is configured to decode an application layer forward error correction (AL-FEC) code associated with the MBMS transmission, or to decode an incorrectly received portion of the media data or metadata Lt; RTI ID = 0.0 > a < / RTI > In some embodiments of the proxy terminal, the MBMS access client is further configured to execute one or more recovery procedures to retrieve incorrectly received portions of the media data or metadata.
본 개시의 다른 실시예는 명령이 저장된 하나 이상의 비일시적 컴퓨터-판독가능 매체를 제공하며, 이 명령은 실행될 때 무선 통신 장치로 하여금 미디어 데이터 - 미디어 데이터는 복수의 미디어 세그먼트를 포함함 - 및 메타데이터를 포함하는 MBMS 전송을 하이퍼텍스트 전송 프로토콜 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over hyper text transfer protocol (DASH)) 포맷으로 수신하도록 하고; 미디어 세그먼트의 일부 또는 전부를 나중의 전송을 위해 저장하도록 하고; 저장된 미디어 세그먼트의 하나 이상을 하이퍼텍스트 전송 프로토콜(HTTP)를 통해 사용자 장비(UE)에 전송하도록 한다. Another embodiment of the present disclosure provides one or more non-volatile computer-readable media having stored thereon instructions for causing a wireless communication device, when executed, to cause the media data-media data to include a plurality of media segments, To receive an MBMS transmission including a dynamic text message in a dynamic adaptive streaming over hypertext transfer protocol (DASH) format based on a hypertext transfer protocol; Store some or all of the media segments for later transmission; Allowing one or more of the stored media segments to be transmitted to the user equipment (UE) via the Hypertext Transfer Protocol (HTTP).
하나 이상의 컴퓨터-판독가능 매체의 일부 실시예에서, 명령은 실행될 때 무선 통신 장치로 하여금 추가로, 복수의 미디어 세그먼트와 연관된 제1 미디어 프리젠테이션 기술(media presentation description (MPD)) 메타데이터를 수신하도록 하고; 제2 MPD 메타데이터 - 제2 MPD는 UE에 전송하기에 유용한 복수의 미디어 데이터 세그먼트의 서브셋 또는 수퍼셋과 연관됨 - 를 UE에게 전송하도록 한다. 하나 이상의 컴퓨터-판독가능 매체의 일부 실시예에서, 명령어는 실행될 때 무선 통신 장치로 하여금 추가로 UE로부터 미디어 세그먼트의 하나 이상의 전송을 위한 요청을 수신하도록 하고; 그 요청에 대한 응답으로 UE로부터 하나 이상의 미디어 세그먼트를 전송하도록 한다. In some embodiments of one or more computer-readable media, the instructions further cause the wireless communication device to receive, when executed, a first media presentation description (MPD) metadata associated with the plurality of media segments and; The second MPD metadata - the second MPD to send to the UE a subset or superset of a plurality of media data segments useful for transmission to the UE. In some embodiments of one or more computer-readable media, the instructions cause the wireless communication device to, when executed, further receive a request for transmission of one or more media segments from the UE; And send one or more media segments from the UE in response to the request.
하나 이상의 컴퓨터-판독가능 매체의 일부 실시예에서, 무선 통신 장치는 무선 통신 네트워크를 통하여 UE와 통신하도록 구성된 진화된 노드 B(eNB)이다. 하나 이상의 컴퓨터-판독가능 매체의 일부 실시예에서, 무선 통신 장치는 다른 하나의 UE이다. In some embodiments of one or more computer-readable media, a wireless communication device is an evolved Node B (eNB) configured to communicate with a UE via a wireless communication network. In some embodiments of one or more computer-readable media, the wireless communication device is another UE.
본 개시의 다른 실시예는 사용자 장비(user equipment (UE))에 의해 미디어를 액세스하기 위해 이용되는 장치를 제공하며, 이 장치는 메모리; 미디어 데이터 - 미디어 데이터는 하나 이상의 미디어 세그먼트를 포함함 - 및 메타데이터를 포함하는 MBMS 전송을 하이퍼텍스트 전송 프로토콜 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over hypertext transfer protocol (DASH)) 방식으로 수신하고, 미디어 데이터 및 메타데이터를 나중의 액세스를 위해 메모리에 캐시하도록 구성된 멀티미디어 방송 및 멀티캐스트 서비스(multimedia broadcast and multicast service (MBMS)) 액세스 클라이언트; 및 미디어 데이터가 캐시된 이후, 미디어 세그먼트 또는 메타데이터 중 하나 이상을 메모리로부터 검색하도록 구성된 DASH 클라이언트를 포함한다.Another embodiment of the present disclosure provides a device for use by a user equipment (UE) to access media, the device comprising: a memory; Wherein the media data-media data comprises one or more media segments, and receiving the MBMS transmission including the metadata in a dynamic adaptive streaming over hypertext transfer protocol (DASH) scheme based on a hypertext transfer protocol, A multimedia broadcast and multicast service (MBMS) access client configured to cache media data and metadata in memory for later access; And a DASH client configured to retrieve one or more of the media segments or metadata from memory after the media data is cached.
장치의 일부 실시예에서, DASH 클라이언트는 하나 이상의 미디어 세그먼트 또는 메타데이터를 HTTP 요청을 이용하여 검색하도록 구성된다. 장치의 일부 실시예에서, MBMS 액세스 클라이언트는 단방향 전송을 통한 파일 전달(delivery over unidirectional transport (FLUTE)) 프로토콜을 통하여 MBMS 전송을 수신하도록 구성된다. In some embodiments of the device, the DASH client is configured to retrieve one or more media segments or metadata using an HTTP request. In some embodiments of the device, the MBMS access client is configured to receive the MBMS transmission over a delivery over unidirectional transport (FLUTE) protocol.
장치의 일부 실시예에서, MBMS 액세스 클라이언트는 미디어 데이터 및 메타데이터를 원격 서버로부터 수신하도록 구성되며, MBMS 액세스 클라이언트는 미디어 프리젠테이션과 연관된, 원격 서버로부터 이용 가능한 미디어 세그먼트의 서브셋을 수신하도록 구성된다.In some embodiments of the device, the MBMS access client is configured to receive media data and metadata from a remote server, and the MBMS access client is configured to receive a subset of available media segments from a remote server associated with the media presentation.
장치의 일부 실시예에서, MBMS 액세스 클라이언트는 미디어 프리젠테이션과 연관된 미디어 세그먼트의 서브셋을 수신하도록 구성되며, 미디어 세그먼트의 서브셋은 미디어 프리젠테이션의 시작 부분에 대응하며, DASH 클라이언트는 미디어 프리젠테이션의 재생 동안 미디어 프리젠테이션의 나머지 부분 중 적어도 일부에 대응하는 미디어 세그먼트를 적응적으로 검색하도록 구성된다.In some embodiments of the device, the MBMS access client is configured to receive a subset of the media segments associated with the media presentation, the subset of media segments corresponding to the beginning of the media presentation, and the DASH client to receive the media presentation during playback of the media presentation And adapted to adaptively search media segments corresponding to at least a portion of the remainder of the media presentation.
장치의 일부 실시예에서, MBMS 액세스 클라이언트는 미디어 프리젠테이션을 식별하는 사용자 표시에 기초하여 미디어 프리젠테이션과 연관된 미디어 데이터를 수신하도록 구성되며, 사용자 표시는 미디어 프리젠테이션을 입수할 수 있기 전에 수신된다. In some embodiments of the device, the MBMS access client is configured to receive media data associated with a media presentation based on a user indication that identifies the media presentation, It is received before the media presentation is available.
비록 특정 실시예가 본 출원에서 설명 목적으로 예시되고 기술되었지만, 동일한 목적을 성취하기 위해 계획된 각종 대안의 및/또는 동등한 실시예 또는 구현예는 본 발명의 범주를 일탈함이 없이 도시되고 기술된 실시예를 대신하여 대체될 수 있다. 본 출원은 본 출원에서 논의된 실시예의 어떠한 변형이나 변경을 망라하고자 한다. 그러므로, 본 출원에서 기술된 실시예는 청구범위와 그의 균등물에 의해서만 제한되는 것으로 분명히 의도하고자 한다.Although specific embodiments have been illustrated and described herein for purposes of description, various alternative and / or equivalent embodiments or implementations contemplated to achieve the same purpose may be made without departing from the scope of the present invention, Can be substituted for. This application is intended to cover any variations or modifications of the embodiments discussed in this application. It is therefore intended that the embodiments described in this application be limited only by the claims and their equivalents.
Claims (20)
방송 멀티캐스트 서비스 센터(broadcast multicast service center; BMSC)를 이용하여 멀티캐스트 방송 멀티미디어 서비스(multicast broadcast multimedia service ;MBMS)를 활성화하는 수단과,
사용자 서비스 검색(user service discovery; USD) 시그널링을 통하여 상기 BMSC로부터 미디어 프리젠테이션 기술(media presentation description; MPD) 메타데이터 - 상기 MPD 메타데이터는 미디어 데이터와 연관됨 - 를 수신하는 수단과,
MBMS 전송을 통하여 상기 BMSC로부터 상기 MPD 메타데이터와 연관된 상기 미디어 데이터의 적어도 일부분을 수신하는 수단과,
상기 수신된 미디어 데이터 및 메타데이터를 캐시하는 수단과,
상기 캐시된 미디어 데이터 및 메타데이터의 적어도 일부분을 수신하기 위해 사용자 장비(user equipment; UE)에서 호스트되는 HTTP 액세스 클라이언트로부터 하이퍼텍스트 전송 프로토콜(hypertext transfer protocol; HTTP) 요청을 수신하는 수단과,
상기 HTTP 요청에 대한 응답으로, 상기 캐시된 미디어 데이터 및 메타데이터의 적어도 일부분을 HTTP 시그널링을 통하여 상기 UE에 전송하는 수단을 포함하는
프록시 터미널.
A proxy terminal comprising:
A means for activating a multicast broadcast multimedia service (MBMS) using a broadcast multicast service center (BMSC)
Means for receiving media presentation description (MPD) metadata from the BMSC via user service discovery (USD) signaling, the MPD metadata associated with media data;
Means for receiving at least a portion of the media data associated with the MPD metadata from the BMSC over an MBMS transmission;
Means for caching the received media data and metadata;
Means for receiving a hypertext transfer protocol (HTTP) request from an HTTP access client hosted at a user equipment (UE) to receive at least a portion of the cached media data and metadata;
And means for transmitting, in response to the HTTP request, at least a portion of the cached media data and metadata to the UE via HTTP signaling
Proxy Terminal.
상기 미디어 데이터 및 MPD 메타데이터는 HTTP 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over HTTP; DASH) 포맷으로 구성되는
프록시 터미널.
The method according to claim 1,
The media data and the MPD metadata are configured in HTTP based dynamic adaptive streaming over HTTP (DASH) format
Proxy Terminal.
상기 수신된 MPD 메타데이터는 제1 MPD 메타데이터이며, 상기 프록시 터미널은 상기 UE에게 HTTP 전송에 유용한 상기 미디어 데이터의 서브셋 또는 수퍼셋과 연관된 제2 MPD 메타데이터를 상기 UE에게 전송하는 수단을 더 포함하는
프록시 터미널.
The method according to claim 1,
The received MPD metadata is first MPD metadata and the proxy terminal further comprises means for sending to the UE second MPD metadata associated with a subset or superset of the media data useful for HTTP transmission to the UE doing
Proxy Terminal.
상기 캐시하는 수단은 상기 수신된 미디어 데이터 및 MPD 메타데이터를 HTTP 전송을 통한 나중의 전송을 위해 저장하는 수단을 포함하며, 상기 HTTP 요청은 상기 수신된 미디어 데이터 및 메타데이터를 캐시한 다음에 상기 UE로부터 수신되는
프록시 터미널.
The method according to claim 1,
Wherein the means for caching comprises means for storing the received media data and MPD metadata for later transmission over an HTTP transport, the HTTP request caching the received media data and metadata, received from
Proxy Terminal.
상기 프록시 터미널은 진화된 노드 B(eNB) 또는 다른 UE에 포함되는
프록시 터미널.
5. The method according to any one of claims 1 to 4,
The proxy terminal may be an evolved Node B (eNB)
Proxy Terminal.
멀티미디어 방송 및 멀티캐스트 서비스(multimedia broadcast and multicast service; MBMS) 액세스 클라이언트와,
하이퍼텍스트 전송 프로토콜(hypertext transfer protocol; HTTP) 서버 모듈을 포함하되,
상기 MBMS 액세스 클라이언트는,
미디어 데이터 및 메타데이터를 포함하는 MBMS 전송을 수신하고,
상기 미디어 데이터 및 메타데이터를 나중의 전송을 위해 캐시하도록 구성되고,
상기 HTTP 서버 모듈은,
상기 미디어 데이터 및 메타데이터가 캐시된 이후 사용자 장비(UE)의 HTTP 액세스 클라이언트로부터 HTTP 요청을 수신하고,
상기 미디어 데이터 및 메타데이터의 적어도 일부분을 HTTP 전송을 통해 상기 UE의 상기 HTTP 액세스 클라이언트로 전송하도록 구성되는
프록시 터미널.
As a proxy terminal,
A multimedia broadcast and multicast service (MBMS) access client,
A hypertext transfer protocol (HTTP) server module,
The MBMS access client,
Receiving an MBMS transmission including media data and metadata,
And cache the media data and metadata for later transmission,
The HTTP server module includes:
Receive an HTTP request from an HTTP access client of the user equipment (UE) after the media data and metadata are cached,
And to transmit at least a portion of the media data and metadata to the HTTP access client of the UE over an HTTP transport
Proxy Terminal.
상기 미디어 데이터 및 메타데이터는 HTTP 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over HTTP; DASH) 포맷으로 구성되는
프록시 터미널.
The method according to claim 6,
The media data and metadata are configured in HTTP based dynamic adaptive streaming over HTTP (DASH) format
Proxy Terminal.
상기 MBMS 액세스 클라이언트는 상기 미디어 데이터와 연관된 제1의 미디어 프리젠테이션 기술(media presentation description; MPD) 메타데이터를 수신하도록 구성되며, 상기 HTTP 서버 모듈은 제2 MPD 메타데이터를 생성하여 상기 UE에게 전송하도록 더 구성되며, 상기 제2 MPD는 상기 UE의 HTTP 액세스 클라이언트에게 HTTP 전송에 유용한 상기 미디어 데이터의 서브셋 또는 수퍼셋과 연관되는
프록시 터미널.
8. The method of claim 7,
Wherein the MBMS access client is configured to receive a first media presentation description (MPD) metadata associated with the media data, wherein the HTTP server module generates second MPD metadata and transmits the second MPD metadata to the UE Wherein the second MPD is associated with a subset or superset of the media data useful for HTTP transmission to an HTTP access client of the UE
Proxy Terminal.
상기 HTTP 서버 모듈은 상기 HTTP 액세스 클라이언트로부터 상기 HTTP 액세스 클라이언트에게 전송될 DASH 포맷 미디어 데이터의 세그먼트를 식별하는 HTTP 요청을 수신하도록 구성되는
프록시 터미널.
8. The method of claim 7,
Wherein the HTTP server module is configured to receive an HTTP request identifying a segment of DASH formatted media data to be sent to the HTTP access client from the HTTP access client
Proxy Terminal.
상기 프록시 터미널은 무선 통신 네트워크를 통하여 상기 UE와 통신하도록 구성된 진화된 노드 B(eNB)에 포함되는
프록시 터미널.
10. The method according to any one of claims 6 to 9,
Wherein the proxy terminal is included in an evolved Node B (eNB) configured to communicate with the UE via a wireless communication network
Proxy Terminal.
상기 프록시 터미널은 다른 UE에 포함되는
프록시 터미널.
10. The method according to any one of claims 6 to 9,
The proxy terminal is included in another UE
Proxy Terminal.
상기 프록시 터미널은 상기 HTTP 액세스 클라이언트를 포함하는 동일한 상기 UE에 포함되는
프록시 터미널. 10. The method according to any one of claims 6 to 9,
Wherein the proxy terminal is included in the same UE including the HTTP access client
Proxy Terminal.
상기 MBMS 액세스 클라이언트는 단방향 전송을 통한 파일 전달(file delivery over unidirectional transport; FLUTE) 프로토콜을 통해 상기 MBMS 전송을 수신하도록 구성되는
프록시 터미널.
The method according to claim 6,
The MBMS access client is configured to receive the MBMS transmission over a file delivery over unidirectional transport (FLUTE) protocol
Proxy Terminal.
상기 MBMS 전송은 방송 멀티캐스트 서비스 센터(broadcast multicast service center; BMSC)로부터 수신되며, 상기 MBMS 액세스 클라이언트는 전달 검증 정보(delivery verification information) 또는 수신 통계(reception statistics)를 이용하여 상기 BMSC에게 보고서를 송신하도록 더 구성되는
프록시 터미널.
The method according to claim 6,
The MBMS transmission is received from a broadcast multicast service center (BMSC) and the MBMS access client sends a report to the BMSC using delivery verification information or reception statistics Further configured to
Proxy Terminal.
상기 MBMS 액세스 클라이언트는 상기 MBMS 전송과 연관된 애플리케이션 계층 포워드 에러 정정(application layer forward error correction; AL-FEC) 코드를 디코딩하도록 또는 상기 미디어 데이터 또는 메타데이터의 부정확하게 수신된 일부분을 검색하는 하나 이상의 복구 절차를 실행하도록 구성되는
프록시 터미널.
The method according to claim 6,
The MBMS access client may be configured to decode an application layer forward error correction (AL-FEC) code associated with the MBMS transmission or one or more recovery procedures to retrieve an incorrectly received portion of the media data or metadata RTI ID = 0.0 >
Proxy Terminal.
메모리와,
미디어 데이터 - 상기 미디어 데이터는 하나 이상의 미디어 세그먼트를 포함함 - 및 메타데이터를 포함하는 MBMS 전송을 하이퍼텍스트 전송 프로토콜 기반의 동적 적응형 스트리밍(dynamic adaptive streaming over hypertext transfer protocol; DASH) 포맷으로 수신하고, 상기 미디어 데이터 및 메타데이터를 나중의 액세스를 위해 상기 메모리에 캐시하도록 구성된, 멀티미디어 방송 및 멀티캐스트 서비스(multimedia broadcast and multicast service; MBMS) 액세스 클라이언트와,
상기 미디어 데이터가 캐시된 이후, 상기 미디어 세그먼트 또는 메타데이터 중 하나 이상을 상기 메모리로부터 검색하도록 구성된 DASH 클라이언트를 포함하는
장치.
10. Apparatus for use by a user equipment (UE) to access media,
A memory,
Wherein the media data comprises one or more media segments, and receiving MBMS transmissions including metadata in a dynamic adaptive streaming over hypertext transfer protocol (DASH) format based on a hypertext transfer protocol, A multimedia broadcast and multicast service (MBMS) access client configured to cache the media data and metadata in the memory for later access;
And a DASH client configured to retrieve one or more of the media segments or metadata from the memory after the media data is cached
Device.
상기 MBMS 액세스 클라이언트는 상기 MBMS 전송을 단방향 전송을 통한 파일 전달(delivery over unidirectional transport; FLUTE) 프로토콜을 통하여 수신하도록 구성되는
장치.
17. The method of claim 16,
The MBMS access client is configured to receive the MBMS transmission through a delivery over unidirectional transport (FLUTE) protocol
Device.
상기 MBMS 액세스 클라이언트는 미디어 데이터 및 메타데이터를 원격 서버로부터 수신하도록 구성되며, 상기 MBMS 액세스 클라이언트는 미디어 프리젠테이션과 연관된, 상기 원격 서버로부터 이용 가능한 상기 미디어 세그먼트의 서브셋을 수신하도록 구성되는
장치.
17. The method of claim 16,
Wherein the MBMS access client is configured to receive media data and metadata from a remote server, the MBMS access client being configured to receive a subset of the media segments available from the remote server associated with the media presentation
Device.
상기 MBMS 액세스 클라이언트는 미디어 프리젠테이션과 연관된 상기 미디어 세그먼트의 서브셋을 수신하도록 구성되며, 상기 미디어 세그먼트의 서브셋은 상기 미디어 프리젠테이션의 시작 부분에 대응하며, 상기 DASH 클라이언트는 상기 미디어 프리젠테이션의 재생 동안 상기 미디어 프리젠테이션의 나머지 부분 중 적어도 일부분에 해당하는 미디어 세그먼트를 적응적으로 검색하도록 구성되는
장치.
17. The method of claim 16,
Wherein the MBMS access client is configured to receive a subset of the media segments associated with a media presentation, the subset of media segments corresponding to a beginning of the media presentation, And adapted to adaptively search media segments corresponding to at least a portion of the remainder of the media presentation
Device.
상기 MBMS 액세스 클라이언트는 상기 미디어 프리젠테이션을 식별하는 사용자 표시(user indication)에 기초하여 미디어 프리젠테이션과 연관된 미디어 데이터를 수신하도록 구성되며, 상기 사용자 표시는 상기 미디어 프리젠테이션의 가용 전에 수신되는
장치. 17. The method of claim 16,
Wherein the MBMS access client is configured to receive media data associated with a media presentation based on a user indication identifying the media presentation, wherein the user indication is received prior to availability of the media presentation
Device.
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